What does code P0C30 mean?

Q: What does code P0C30 mean?

Hybrid/EV Battery Pack State of Charge High. P0C30 indicates that the hybrid or electric vehicle battery pack's state of charge (SOC) has risen above the manufacturer's safe upper limit, as reported by the battery energy control module. The computer detects this condition when the calculated SOC exceeds a calibrated threshold, typically due to excessive regenerative braking, a charging system fault, or a cell imbalance issue.

DTC codes / P0Cxx · Hybrid propulsion / P0C30

P0C30Hybrid/EV Battery Pack State of Charge High

P0C30 indicates that the hybrid or electric vehicle battery pack's state of charge (SOC) has risen above the manufacturer's safe upper limit, as reported by the battery energy control module. The computer detects this condition when the calculated SOC exceeds a calibrated threshold, typically due to excessive regenerative braking, a charging system fault, or a cell imbalance issue.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.